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1998, 1999³âµµ ¿ì¸®³ª¶ó¿¡¼­ ½ÃÇàµÈ À¯¹æº¸Á¸¼ö¼ú ÈÄ ¹æ»ç¼±Ä¡·á ÇöȲ Á¶»ç The 1998, 1999 Patterns of Care Study for Breast Irradiation After Breast-Conserving Surgery in Korea

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Abstract

¸ñ Àû: À¯¹æ¾Ï¿¡ ´ëÇÑ ¹æ»ç¼±Ä¡·áÀÇ ÀûÁ¤¼º°ú ¾ÈÀü¼ºÀ» º¸ÀåÇÏ°í ±Ã±ØÀûÀ¸·Î Ä¡·á È¿°ú¸¦ Çâ»ó½ÃÅ°±â À§ÇÑ ¹æ»ç¼±Ä¡·á ±â¼ú Ç¥ÁØÈ­¸¦ À§ÇÏ¿© ¿ì¸®³ª¶ó Àü±¹ÀÇ º´¿øÀ» ´ë»óÀ¸·Î ÇÏ´Â Ä¡·á ÇüÅ Á¶»ç¿¬±¸(Patterns of Care Study)¸¦ °èȹÇÏ¿´´Ù. ±× ù ´Ü°è·Î À¯¹æº¸Á¸Àû ¼ö¼ú ÈÄ ½ÃÇàÇÑ ¹æ»ç¼±Ä¡·á ¹æ¹ý¿¡ ´ëÇÏ¿© Á¶»çÇÏ°í ºÐ¼®ÇÏ¿´´Ù.

´ë»ó ¹× ¹æ¹ý: Á¶»çÇÏ°íÀÚ ÇÏ´Â ÀÔ·Â ¹®Ç×À» °³¹ßÇÏ¿´°í µ¿½Ã¿¡ ÀÎÅͳÝÀ» ÅëÇÏ¿© Á¶»çÀÚ°¡ Á÷Á¢ ÀÔ·ÂÇÒ ¼ö ÀÖµµ·Ï Web ±â¹Ý ÀÔ·Â ÇÁ·Î±×·¥(www.pcs.re.kr)À» °³¹ßÇÏ¿´´Ù. ´ë»ó ȯÀÚµéÀº 1998³âµµ¿Í 1999³âµµ¿¡ À¯¹æº¸Á¸¼ú ÈÄ ¹æ»ç¼±Ä¡·á¸¦ ¹ÞÀº ȯÀÚ·Î Àü¼ö Á¶»ç¸¦ ÇÏÁö ¾Ê°í Ç¥º» ÃßÃâÇÏ¿© Á¶»çÇÏ¿´´Ù. ÀÔ·Â ¹®Ç×Àº 127°³·Î º´·Â°ú ÀÌÇÐÀû ¼Ò°ß, ¼ö¼ú ¼Ò°ß°ú º´¸® ¼Ò°ß, Ç×¾ÏÈ­Çпä¹ý, È£¸£¸ó¿ä¹ý, ¹æ»ç¼±Ä¡·á°èȹ, ¹æ»ç¼±Ä¡·á, Ä¡·á Áß ºÎÀÛ¿ë, Ä¡·á È¿°ú, ÇÕº´Áõ, ¹Ì¿ë È¿°ú µî 10±ºÀ¸·Î ³ª´©¾îÁ® ÀÖ´Ù. 15°³ º´¿ø¿¡¼­ ÀÔ·ÂµÈ 261¸íÀÇ µ¥ÀÌÅ͸¦ ºÐ¼®ÇÏ¿´´Ù.

°á °ú: ¿¬·ÉÀº 24¢¦85¼¼(Áß¾Ó°ª 45¼¼)¿´´Ù. º´¸®ÇÐÀû À¯ÇüÀº °ü»óÇǾÏÁ¾ÀÌ 88.9%·Î ´ëºÎºÐÀ» Â÷ÁöÇÏ¿´À¸¸ç ¼öÁú¼º¾ÏÁ¾ÀÌ 4.2%, ¼Ò¿±»óÇǾÏÁ¾ÀÌ 1.5%¿´´Ù. º´±â´Â AJCC (American Joint Committee on Cancer) 5ÆÇ¿¡ µû¶ó ºÐ·ùÇÏ¿´À¸¸ç T1ÀÌ 59.7%, T2°¡ 29.5%, Tis°¡ 8.8%¿´À¸¸ç ÀüüÀÇ 42.5%°¡ T1c¿¡ ÇØ´çÇÏ¿´´Ù. Àüü ȯÀÚÀÇ 91.2%¿¡¼­ ¾×¿Í¸²ÇÁÀý °ûû¼úÀÌ ½ÃÇàµÇ¾ú°í 69.7%ÀÇ È¯Àڵ鿡¼­´Â ¾×¿Í¸²ÇÁÀý ÀüÀÌ°¡ ¾ø¾úÀ¸¸ç ¸²ÇÁÀý ÀüÀÌ°¡ 3°³ ÀÌÇÏÀÎ °æ¿ì°¡ 15.3%, 4¢¦9°³°¡ 4.2%, 10°³ ÀÌ»ó ÀüÀÌµÈ °æ¿ì°¡ 1.9%¿´´Ù. µû¶ó¼­ º´±â 0±â°¡ 8.4%, I±â, 44.9%, IIA±â, 33.3%, IIB±â 8.4%¿´´Ù. ¿¡½ºÆ®·Î°Õ¼ö¿ëü¿Í ÇÁ·Î°Ô½ºÅ׷мö¿ëü °Ë»ç´Â °¢°¢ 71.6, 70.9 %¿¡¼­ ÀÌ·ç¾îÁ³´Ù. À¯¹æº¸Á¸Àû ¼ö¼ú ¹æ¹ýÀº ´Ü¼øÀýÁ¦¼ú(excision/lumpectomy)ÀÌ 37.2%, ±¤¹üÀ§ÀýÁ¦¼úÀÌ 11.5% »çºÐ¿øÀýÁ¦¼ú(quadrantectomy)ÀÌ 23%, ºÎºÐÀýÁ¦¼ú(partial mastectomy)ÀÌ 27.5%¿¡¼­ ½ÃÇàµÇ¾ú´Ù. ¼ö¼ú ÈÄ 10¿¹(3.8%)¿¡¼­ ÀýÁ¦¿¬ÀÌ ¾ç¼ºÀ̾ú°í 10¿¹´Â ÀýÁ¦¿¬ÀÌ Á¾¾ç¿¡¼­ 2 mm À̳»¿´´Ù. Ç×¾ÏÈ­Çпä¹ýÀº I±â¿¡¼­ 54.7%, IIA±â¿¡¼­ 83.9%, IIB¿¡¼­ 100% ½ÃÇàµÇ¾ú´Ù. ¹æ»ç¼±Ä¡·á´Â 1¿¹¸¦ Á¦¿ÜÇÑ ¸ðµç ȯÀÚµéÀÌ °èȹµÈ ¹æ»ç¼±·®ÀÇ 90% ÀÌ»óÀ» Á¶»ç ¹ÞÀ½À¸·Î½á ¼øÀÀµµ°¡ ¸Å¿ì ³ôÀº Ä¡·áÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¹æ»ç¼±Ä¡·áÀÇ ¹üÀ§´Â ÀüüÀÇ 88%°¡ À¯¹æ¸¸ Ä¡·á¹Þ¾Ò°í 5%´Â À¯¹æ°ú ¼â°ñ»óºÎ¸²ÇÁÀýÀ», 4.2%´Â À¯¹æ, ¼â°ñ»óºÎ¸²ÇÁÀý¿¡ ¾×¿Í¸²ÇÁÀýÈĹæÃß°¡Á¶»ç¸¦ ÇÏ¿´À¸¸ç, À¯¹æ, ¼â°ñ»óºÎ¸²ÇÁÀý°ú ÇÔ²² ³»À¯¹æ¸²ÇÁÀýÀ» Ä¡·áÇÏ¿´´ø ¿¹´Â 1¿¹(0.4%) »ÓÀ̾ú´Ù. À¯¹æ Ä¡·á¿¡ »ç¿ëµÈ ¹æ»ç¼±ÀÇ Á¾·ù´Â Co-60°¡ 8¸í(3.1%), 4 MV X-ray°¡ 115¸í(44.1%), 6 MV X-ray°¡ 125¸í(47.8%)À̾úÀ¸¸ç 11¸í(4.2%)Àº 10 MV X-ray¸¦ »ç¿ëÇÏ¿´´Ù. Á¶»çµÈ ¹æ»ç¼±·®Àº À¯¹æ Àüü¿¡ 45¢¦59.4 Gy (Áß¾Ó°ª 50.4), ¿ø¹ß º´¼Ò¿¡ ´ëÇÑ Ãß°¡ Á¶»ç°¡ 8¢¦20 Gy (Áß¾Ó°ª 10 Gy)·Î ÃÑ ¹æ»ç¼± Á¶»ç¼±·®Àº 50.4¢¦70.4 Gy (Áß¾Ó°ª 60.4 Gy)¿´´Ù.

°á ·Ð: Á¶±â À¯¹æ¾Ï¿¡ ´ëÇÑ Áø´Ü°ú º´±â °áÁ¤ °úÁ¤, À¯¹æº¸Á¸Àû ¼ö¼ú ÈÄ ½ÃÇàµÇ´Â ¹æ»ç¼±Ä¡·á´Â Å« ÆíÇâÀÌ ¾øÀÌ ±Ç°í¾È´ë·Î Àß ½ÃÇàµÇ°í ÀÖ¾ú´Ù. ´Ù¸¸ ¿ø¹ß º´¼Ò¿¡ ´ëÇÑ Ãß°¡ Ä¡·á´Â ºñ±³Àû ´Ù¾çÇÏ°Ô Àû¿ëµÇ°í Àִµ¥ ÀÌ°ÍÀÌ Ä¡·á °á°ú¿¡ ¾î¶² ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ÃßÀûÁ¶»ç¿¬±¸°¡ ÇÊ¿äÇÏ¸ç ¹æ»ç¼±Ä¡·á °èȹ»óÀÇ ¼¼ºÎ »çÇ׿¡ ´ëÇÑ ºÐ¼®°ú Æò°¡°¡ ÇâÈÄ ÀÌ·ç¾îÁ®¾ß ÇÒ °ÍÀÌ´Ù.

Purpose: To determine the patterns of evaluation and treatment in the patient with early breast cancer treated with conservative surgery and radiotherapy and to improve the radiotherapy techiniques, nationwide survey was performed.

Materials and Methods: A web-based database system for Korean Patterns of Care Study (PCS) for 6 common cancers was developed. Two hundreds sixty-one randomly selected records of eligible patients treated between 1998¢¦1999 from 15 hospitals were reviewed.

Results: The patients ages ranged from 24 to 85 years(median 45 years). Infiltrating ductal carcinoma was most common histologic type (88.9%) followed by medullary carcinoma (4.2%) and infiltrating lobular carcinoma (1.5%). Pathologic T stage by AJCC was T1 in 59.7% of the casses, T2 in 29.5% of the cases, Tis in 8.8% of the cases. Axillary lymph node dissection was performed in 91.2% of the cases and 69.7% were node negative. AJCC stage was 0 in 8.8% of the cases, stage I in 44.9% of the cases, stage IIa in 33.3% of the cases, and stage IIb in 8.4% of the cases. Estrogen and progesteron receptors were evaluated in 71.6%, and 70.9% of the patients, respectively. Surgical methods of breast-conserving surgery was excision/lumpectomy in 37.2%, wide excision in 11.5%, quadrantectomy in 23% and partial mastectomy in 27.5% of the cases. A pathologically confirmed negative margin was obtained in 90.8% of the cases. Pathological margin was involved with tumor in 10 patients and margin was close (less than 2 mm) in 10 patients. All the patients except one recieved more than 90% of the planned radiotherapy dose. Radiotherapy volume was breast only in 88% of the cases, breast+supraclavicular fossa (SCL) in 5% of the cases, and breast+SCL+posterior axillary boost in 4.2% of the cases. Only one patient received isolated internal mammary lymph node irradiation. Used radiation beam was Co-60 in 8 cases, 4 MV X-ray in 115 cases, 6 MV X-ray in 125 cases, and 10 MV X-ray in 11 cases. The radiation dose to the whole breast was 45¢¦59.4 Gy (median 50.4) and boost dose was 8¢¦20 Gy (median 10 Gy). The total radiation dose delivered was 50.4¢¦70.4 Gy (median 60.4 Gy).

Conclusion: There was no major deviation from current standard in the patterns of evaluation and treatment for the patients with early breast cancer treated with breast conservation method. Some varieties were identified in boost irradiation dose. Separate analysis for the datails of radiotherapy planning will be followed and the outcome of treatment is needed to evaluate the process.

Å°¿öµå

À¯¹æ¾Ï;À¯¹æº¸Á¸¼ú;¹æ»ç¼±Ä¡·á;Breast cancer;Breast-conserving treatment;Radiotherapy

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KoreaMed
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